/*
* Class: sun_awt_shell_Win32ShellFolder
* Method: getIcon
* Signature: (JJZ)J
*/
JNIEXPORT jlong JNICALL Java_sun_awt_shell_Win32ShellFolder_getIcon__JJZ
(JNIEnv* env, jobject folder, jlong parentIShellFolder, jlong relativePIDL,
jboolean getLargeIcon)
{
IShellFolder* pParent = (IShellFolder*)parentIShellFolder;
if (pParent == NULL) {
return 0;
}
LPITEMIDLIST pidl = (LPITEMIDLIST)relativePIDL;
if (pidl == NULL) {
return 0;
}
IExtractIcon* pIcon;
if (pParent->GetUIObjectOf(NULL, 1, const_cast<LPCITEMIDLIST*>(&pidl),
IID_IExtractIcon, NULL, (void**)&pIcon) != S_OK) {
return 0;
}
CHAR szBuf[MAX_PATH];
INT index;
UINT flags;
if (pIcon->GetIconLocation(
GIL_FORSHELL, szBuf, MAX_PATH, &index, &flags)
!= S_OK) {
pIcon->Release();
return 0;
}
HICON hIcon;
HICON hIconLarge;
if (pIcon->Extract(szBuf, index, &hIconLarge, &hIcon, (16 << 16) + 32) != S_OK) {
pIcon->Release();
return 0;
}
return (jlong)(getLargeIcon ? hIconLarge : hIcon);
}
QImage FhoIcon::getIconForFile(IShellFolder *psfParentItem, LPITEMIDLIST pidlChildItem) {
HRESULT hres;
IExtractIcon *pExtractIcon = NULL;
hres = psfParentItem->GetUIObjectOf(NULL, 1, const_cast<LPCITEMIDLIST *>(&pidlChildItem), IID_IExtractIcon, NULL, reinterpret_cast<LPVOID *>(&pExtractIcon));
if (SUCCEEDED(hres)) {
TCHAR str[MAX_PATH] = {0};
int index;
UINT flags;
// Get the file location where the icons are stored.
hres = pExtractIcon->GetIconLocation(0, str, MAX_PATH, &index, &flags);
//hres = pExtractIcon->GetIconLocation(GIL_FORSHELL, str, MAX_PATH, &index, &flags);
if (SUCCEEDED(hres)) {
QString iconResourceFile = QString::fromWCharArray(str);
// do not use 'general' getIconFromResource() -> ExtractIcon()!
// use 'specific' pExtractIcon->Extract() instead!
// this is because iconResourceFile returned may be "*" and not refer to a real file! pExtractIcon->Extract() will handle this, ExtractIcon() cannot handle this!
// "*" is dangerous for caching the imageId! we could check if iconResourceFile refers to an existing file!?
HICON hIconLarge = NULL;
UINT nIconSize = MAKELONG(0, 0); // this requests the default size!?
hres = pExtractIcon->Extract(str, index, &hIconLarge, NULL, nIconSize);
if (hres == NOERROR) {
if (hIconLarge) {
QImage image = getIconFromHandle(hIconLarge);
DestroyIcon(hIconLarge);
return image;
} else {
return getIconFromResource(iconResourceFile, index);
}
} else {
return getIconFromResource(iconResourceFile, index);
}
} else {
return getIconForFile(pidlChildItem);
}
pExtractIcon->Release();
} else {
return getIconForFile(pidlChildItem);
}
}